Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3NCR callsign genealogy
Currently held by Clark, Jeffery S
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KB3NCR's current licensee, walking backwards.
- Clark, Jeffery SPAgranted 2005-09-21cancelled 2006-02-01
Successor callsigns
Callsigns held now by people who previously held KB3NCR.
- Clark, Jeffery SAKgranted 2025-08-26